CN215009558U

CN215009558U - Power cable intermediate joint sealing device

Info

Publication number: CN215009558U
Application number: CN202121084186.5U
Authority: CN
Inventors: 黄举; 杨国忠; 童毅; 尹泽华
Original assignee: Hangzhou Futong Electric Co ltd
Current assignee: Hangzhou Futong Electric Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-12-03
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to a cable joint seals technical field, a power cable intermediate head sealing device is disclosed, including the protective housing, the through-hole of cable business turn over is seted up at the both ends of protective housing, the tip of cable passes the inside that the through-hole extends to the protective housing, the interior middle part of protective housing is provided with the intermediate head that is used for carrying out two sections cable ends and connects, the outside symmetry parcel of intermediate head has two arc splint, the direction that the intermediate head axis was kept away from to one of them group arc splint is provided with two sets of extrusion mechanism, the outer tip fixedly connected with of extrusion mechanism fixes the cotton that absorbs water on the protective housing lateral wall, the bottom of another group arc splint is fixed on the cotton that absorbs water of downside through two sets of connecting rods.

Description

Power cable intermediate joint sealing device

Technical Field

The utility model relates to a cable joint seals technical field, specifically is power cable intermediate head sealing device.

Background

Have been widely used as intermediate joints for making connections between power cables. The cable joint requires to have good sealing performance, at present, the sealed mode that generally adopts around the package of high pressure intermediate head tip, because the cable generally all buries underground, receive the pressure that comes from a plurality of directions easily, although the sealing operation of certain degree has been carried out to the joint, because permeate around the joint easily at groundwater or rainwater, consequently to the sealing capacity who connects, there is higher requirement, and intermediate head is in moist environment, places for a long time, takes place to become flexible easily, be unfavorable for waterproof sealing protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power cable intermediate head sealing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: power cable intermediate head sealing device, including the protective housing, the through-hole of cable business turn over is seted up at the both ends of protective housing, and the tip of cable passes the through-hole and extends to the inside of protective housing, and the interior middle part of protective housing is provided with the intermediate head that is used for carrying out two sections cable ends and connects, and the outside symmetry parcel of intermediate head has two arc splint, through the centre gripping of two arc splint, improves the steadiness of intermediate head to cable end connection.

Wherein the direction that the intermediate head axis was kept away from to a set of arc splint is provided with two sets of extrusion mechanism, extrusion mechanism's outer tip fixedly connected with fixes the cotton that absorbs water on the protective housing lateral wall, the bottom of another set of arc splint is fixed on the cotton that absorbs water of downside through two sets of connecting rods, utilize the cotton moisture that absorbs water, increase its self weight, then the connection contact through extrusion mechanism, increase the pressure to the arc splint, thereby improve two sets of arc splint centre gripping intermediate head's dynamics, further improve the sealing stability of intermediate head to cable junction.

As a further aspect of the present invention: the cable outside the through hole is sleeved with a sealing ring for improving the sealing performance inside the protective shell, and the sealing performance of cable connection can be effectively improved by wrapping the protective shell outside the cable.

As a further aspect of the present invention: extrusion mechanism includes the lift groove of one end open-ended columnar structure, lift groove confined one side is fixed on the arc splint, the inside fixed mounting in lift groove has the telescopic link of "worker" type structure, the end of telescopic link has the closing plate through two sets of elastic component elastic connection, the outside of closing plate is fixed on the cotton inside wall that absorbs water through elasticity tarpaulin, when the cotton gravity that absorbs water is progressively crescent, elasticity tarpaulin is close to towards the arc splint, then exert pressure to extrusion mechanism, and then transmit on the arc splint, increase the pressure to the arc splint.

As a further aspect of the present invention: the elastic member may be provided as an elastic member such as a spring.

As a further aspect of the present invention: the outer sides of the protective shells on the two sides of the absorbent cotton are fixedly provided with supporting legs similar to right-angle triangular structures, and moisture on the two sides can be conveyed to the absorbent cotton along the inclined planes of the supporting legs through the supporting legs.

As a further aspect of the present invention: a plurality of parallel guiding gutters are arranged on the inclined plane of the supporting leg, and the guiding gutters are used for improving the regularity of water flowing.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the inside at the protecting crust with the intermediate head, can effectually prevent its and outside environmental contact, increase its sealed security, simultaneously through setting up the cotton that absorbs water in one side at the protecting crust, then will absorb water cotton and the arc splint elastic connection of centre gripping in the intermediate head outside through extrusion mechanism, thereby utilize the gravity of water, improve the dynamics of arc splint centre gripping intermediate head, and then effectually when carrying on waterproofly, the water of utilization, the improvement is to the connection stability of intermediate head and the leakproofness of installation.

Drawings

Fig. 1 is a schematic perspective view of a sealing device for an intermediate joint of a power cable.

Fig. 2 is a front view of the internal structure of the sealing device for the middle joint of the power cable.

Fig. 3 is a schematic top view of the sealing device for the intermediate joint of the power cable.

Fig. 4 is an enlarged schematic structural diagram of a1 in fig. 2.

Wherein: the device comprises a protective shell 10, a cable 11, a sealing ring 12, a support leg 13, a diversion trench 15, washing cotton 16, an intermediate joint 17, an arc-shaped clamping plate 18, an extrusion mechanism 19, a lifting trench 20, an expansion rod 21 and an elastic piece 22.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

Referring to fig. 1-3, the power cable intermediate connector sealing device includes a protective shell 10, through holes for the cables 11 to pass in and out are formed at two ends of the protective shell 10, end portions of the cables 11 pass through the through holes and extend into the protective shell 10, an intermediate connector 17 for connecting end portions of two sections of the cables 11 is arranged at an inner middle portion of the protective shell 10, two arc-shaped clamping plates 18 are symmetrically wrapped at outer sides of the intermediate connector 17, and stability of the intermediate connector 17 to connection of the end portions of the cables 11 is improved by clamping the two arc-shaped clamping plates 18. The cable 11 outside the through-hole is sleeved with a sealing ring 12 for improving the internal sealing performance of the protective shell 10, and the sealing performance of the connection of the cable 11 can be effectively improved by wrapping the protective shell 10 outside.

Wherein the direction that intermediate head 17 axis was kept away from to a set of arc splint 18 is provided with two sets of squeezing mechanism 19, squeezing mechanism 19's outer tip fixedly connected with fixes the cotton 16 that absorbs water on the protective housing 10 lateral wall, another set of arc splint 18's bottom is fixed on the cotton 16 that absorbs water of downside through two sets of connecting rods, utilize the cotton 16 that absorbs water to absorb moisture, increase its self weight, then the connection contact through squeezing mechanism 19, increase the pressure to arc splint 18, thereby improve the dynamics of two sets of arc splint 18 centre gripping intermediate head 17, further improve the sealing stability that intermediate head 17 is connected cable 11.

Referring to fig. 4, the extruding mechanism 19 includes a lifting groove 20 with an open end and a columnar structure, one side of the lifting groove 20 is fixed on the arc-shaped clamping plate 18, an expansion rod 21 with an i-shaped structure is fixedly installed inside the lifting groove 20, the tail end of the expansion rod 21 is elastically connected with a sealing plate through two groups of elastic pieces 22, the outer side of the sealing plate is fixed on the inner side wall of the absorbent cotton 16 through elastic waterproof cloth, when the gravity of the absorbent cotton 16 gradually increases, the elastic waterproof cloth is close to the arc-shaped clamping plate 18, then pressure is applied to the extruding mechanism 19, and further the pressure is transmitted to the arc-shaped clamping plate 18, and the pressure on the arc-shaped clamping plate 18 is increased.

The elastic member 22 may be provided as an elastic member such as a spring.

The outer sides of the protective shells 10 on the two sides of the absorbent cotton 16 are fixedly provided with support legs 13 similar to a right-angle triangle structure, and moisture on the two sides can be conveniently conveyed to the absorbent cotton 16 along the inclined surfaces of the support legs 13 through the support legs 13.

The inclined plane of stabilizer blade 13 is seted up a plurality of parallel guiding gutters 15, and the setting of guiding gutters 15 is used for improving the regularity that water flows.

The utility model discloses a theory of operation is: because the protective housing 10 is when centering joint 17 protects, wholly bury underground, when rainy day or deeper position around it, just can receive depending on of moisture, consequently, the protection leakproofness of intermediate joint 17 when increasing cable 11 and connecting, set up the cotton 16 that absorbs water that is used for absorbing moisture in top one side of protective housing 10, through set up the squeezing mechanism 19 that has the buffer capacity between cotton 16 and the arc splint 18 of absorbing water, then increase the dynamics of upside arc splint 18 centre gripping intermediate joint 17 through the gravity of the cotton 16 that absorbs water, and then fully improve the installation sealing dynamics to intermediate joint 17.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. Power cable intermediate head sealing device, including the protective housing, the through-hole of cable business turn over is seted up at the both ends of protective housing, the tip of cable passes the inside that the through-hole extends to the protective housing, the interior middle part of protective housing is provided with the intermediate head that is used for carrying out two sections cable ends and connects, a serial communication port, intermediate head's outside symmetry parcel has two arc splint, the direction that intermediate head axis was kept away from to one of them group arc splint is provided with two sets of extrusion mechanism, the outer tip fixedly connected with of extrusion mechanism fixes the cotton that absorbs water on the protective housing lateral wall, another group arc splint's bottom is fixed on the cotton that absorbs water of downside through two sets of connecting rods.

2. The power cable intermediate joint sealing device of claim 1, wherein a sealing ring for improving the sealing performance inside the protective shell is sleeved on the cable outside the through hole.

3. The power cable intermediate joint sealing device according to claim 2, wherein the extrusion mechanism comprises a lifting groove with a columnar structure with an opening at one end, one closed side of the lifting groove is fixed on the arc-shaped clamping plate, an expansion link with an I-shaped structure is fixedly installed inside the lifting groove, the tail end of the expansion link is elastically connected with a sealing plate through two groups of elastic pieces, and the outer side of the sealing plate is fixed on the inner side wall of the absorbent cotton through elastic waterproof cloth.

4. A power cable intermediate joint sealing device according to claim 3, wherein the elastic member is provided as an elastic member such as a spring.

5. The sealing device for the middle joint of the power cable as claimed in claim 1 or 2, wherein the outer sides of the protective shells on the two sides of the absorbent cotton are fixedly provided with support legs similar to a right-angled triangle structure.

6. The power cable intermediate joint sealing device of claim 5, wherein the inclined surface of the leg is provided with a plurality of parallel flow guiding grooves.